Music fans can break through the Glass ceiling

The firm is sending out the invites to commemorate Google Play Music arriving as a Google Glass app with the aim of extending its pool of Glass 'Explorers' prior to the expected consumer roll out in 2014.

Currently the offer is only being extended to those in the United States, but providing you can nail down a U.S shipping address of some description, you should be good to go... providing you're willing to part with $1,500 (around £907, AU$1,677) so soon after the holidays.